Drones can be described as an aircraft or spacecraft without a human presence to operate or control them. They are also called UAVs' (Unmanned Aerial Vehicles). Drones are more popular now than ever before because their usage has now become widespread. They are specially designed to traverse autonomously, remotely, and even when not in the line of sight. No wonder drones are classified as one of the most advanced robotic devices. Drones are typically constructed with light composite materials to allow for less weight and easy maneuver when airborne. They are built to have Global Positioning Systems (GPS), cameras, GPS guided missiles, navigation systems, sensors, and additional software and hardware. These provide them with varying functions as well as shapes and sizes. And most importantly, their components comprise motors, levitation and motor controller, propellers, transmitters and receivers, watertight motor frame, and battery for energy storage. Drones have the capability of been flown beyond the line of sight with ultra-stability. Regardless, it can stand a chance of crashing. While commercial drones used for social activities have a shorter coverage distance and reduced energy to last for a short time, advanced drones that are used for mapping and military activities can be controlled from a very long distance as they hover for several hours.
Drones have endless possibilities, which is why their usage cuts across numerous applications. Based on this, there is an increase in the technology's advancement to enable robust usage.
Security – Drones are used to coordinate various military operations simultaneously or in some cases at once, and they can preserve evidence in this kind of situation. More so, in case of emergencies, they can be used to protect people and properties, especially during evacuation.
Surveillance- A drone is designed to have cameras to monitor and record events like protests or criminal activities stealthily. For example, the capturing of environmental disasters or monitoring of protests.
Search and rescue – Usually used for emergency purposes in any location to find a missing person, rescue crime or accident victims. They provide situational awareness of a large regional space in environmental incidents to inform better how decisions will be made in the fastest possible time.
Inspections – Deploying Unmanned Aerial Vehicles (UAV's) to monitor the integrity of hazardous equipment or materials like gas pipelines, grid power lines, wind turbines, and nuclear reactors is essential for human safety. This reduces the risk and hazard inflicted on personnel while safety value is increased.
Unmanned Cargo Delivery - They perform lightweight cargo delivery multiple times to multiple places and as fast as possible. In this way, people enjoy the ease of movement of their items by air, in a safe and secured style. With your address and identification locked in, the drone finds and locates you for your delivery quickly.
Science and Research – Some researches require rapt observation and monitoring to collect detailed data for analysis, especially in environmental and natural occurrences within the earth or atmosphere. This performance can be done to monitor volcanoes, surveillance for glaciers, e.t.c.
Aerial Photography and Video – The media industry utilizes drones a lot for entertainment. They are used to cover animals' biological activities in the forests, shoot clips in dynamic
and humanly impossible angles, and take landscape footage of an area of superb quality from the sky.
GIS Mapping and Surveying – Drones are used when there is a need to perform tasks on remote sensing, photogrammetry, and intelligent agriculture. High definition multi-spectral cameras and laser type scanners are used to produce their high-quality 3-D picture maps.
Furthermore, drones are utilized in engineering activities, most especially in construction works and also it is used in the aviation and maritime industries. Even government and non-government agencies and private institutions have their drones. With this, it is obvious that drones' application is far reached, especially in this era that we are already desirous of machines doing most of our work due to the possibility of reducing drudgery leading to loss of man-hour.